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Slawsonite |
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Griffen D T, Ribbe P H, Gibbs G V |
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American Mineralogist 62 (1977) 31-35 |
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The structure of slawsonite, a strontium analog of paracelsian |
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8.888 9.344 8.326 90 90.33 90 P2_1/a |
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atom x y z occ B(1,1) B(2,2) B(3,3) B(1,2) B(1,3) B(2,3) |
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Sr .8902 .4122 .2503 .87 .0030 .0020 .0029 .0000 .0000 .0001 |
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Ca .8902 .4122 .2503 .13 .0030 .0020 .0029 .0000 .0000 .0001 |
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Si1o .2321 .9249 .9311 .50 .0009 .0010 .0012 .0001 .0000 .0002 |
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Al1o .2321 .9249 .9311 .50 .0009 .0010 .0012 .0001 .0000 .0002 |
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Si1m .2405 .9199 .5605 .50 .0006 .0009 .0011 .0000 .0002 .0000 |
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Al1m .2405 .9199 .5605 .50 .0006 .0009 .0011 .0000 .0002 .0000 |
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Si2o .0595 .2006 .9440 .50 .0008 .0006 .0010 -.0002 .0000 .0001 |
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Al2o .0595 .2006 .9440 .50 .0008 .0006 .0010 -.0002 .0000 .0001 |
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Si2m .0541 .1944 .5706 .50 .0009 .0007 .0010 -.0001 .0001 .0000 |
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Al2m .0541 .1944 .5706 .50 .0009 .0007 .0010 -.0001 .0001 .0000 |
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O1o .1910 .0934 .0100 .0021 .0015 .0022 .0007 .0003 .0000 |
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O1m .1875 .0740 .4937 .0025 .0010 .0028 .0008 .0008 .0005 |
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O2o .1192 .3658 .9458 .0013 .0007 .0022 -.0002 -.0007 .0003 |
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O2m .1236 .3699 .5573 .0017 .0012 .0020 -.0001 .0011 -.0002 |
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O3o .9202 .1919 .0699 .0013 .0016 .0015 -.0002 .0003 -.0002 |
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O3m .8979 .1923 .4399 .0010 .0016 .0029 .0000 .0001 .0004 |
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O4 .0092 .1545 .7662 .0042 .0027 .0013 -.0012 .0000 .0000 |
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O5 .3139 .9252 .7407 .0012 .0025 .0017 -.0006 .0003 .0002 |
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